Apparatus for burning fluid fuel



July 13 1926. 1,592,579

, H. A. TEDMAN APPARATUS FOR BURNING FLUID FUEL Filed Nov. 20, 192

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' H. A. TEDMAN APPARATUS FUR BURNING FLUID FUEL l l Filed Nov. 2o, 1924 2 sheets-sheet 2 Y A dv c) k U $1 1 N N @l Patented July 13, 1926.

UNITED STATES 1,592,579 PATENT OFFICE.

HUD/SON A. TEDMAN, OF GALESBUBG, ILLINOIS, ASSIGNOR T0 WIN SLOW BOILER & EN- GINEERING COMPANY, OF GALESBURG, ILLINOIS, A CORPORATION OFILLINOIS.

APPARATUS FOR BURNING FLUID FUEL.

Application illed November 20, 1924. Serial No. 751,908.

The present invention relates to apparatus or devices for burning fluid fuels or the like, and has among its objects to provide a mechanism having a removable unit so that if inspection, adjustment or repair be required, the unit may be readily removed, or if any repair be such as to necessitate taking the mechanism to a place adapted therefor, an-

other unit may be located in its place and the operation of the apparatus or device not held up pending such repairs; or for any reason whatever, there may be interchangeability of the units; and to provide for such other objects, advantages and capabilities as will later more fully .appear and are inherently possessed by the invention.

Referring to the drawings illustrating an embodiment of the invention, Fig. 1 is a longitudinal `and vertical sectional view through a device constructed in accordance with the invention; Fig. 2 is a side viewl in elevation of the removable unit; Figs. 3 and 4 are. transverse sectional views taken in planes represented by lines 3 3 and 4 4 on Fig. 1` of the drawing; Fig. 5 is a transverse sectional view of the casing with the removable unit removed, taken on a plane represented by line 5 5 of Fig. 1 of the drawings; and, Fig. 6 is a transverse sectional view of the unit, taken in a plane represented by line `6---6 on Fig. 2 of the drawings. y

Referring more in detail to the drawings the construction or embodiment elected to illustrate the invention is shown upon the drawings' as comprising a casing or hollow support 1 having at its forward end an end wall 2 suitably secured to an inlet end 3 of a combustion chamber yor fire pot 4 which is normally suitably supported upon a support 5 of any desirable kind and which may be located within the chamber of a boiler or heating furnace or the like. Near the other end of the casing 1 is secured a pair of brackets 6 ladjustably connected, as by screw threads and nuts, to a pair of supporting legs 7 having floor plates 8, as clearly shown in Figs. 1 and 3 of the drawings. The casing may be properly leveled adjusting the nuts on the threaded portlon of the`legs7 as will be clearly apparent from Fig. 3 of the drawings.

Upon the casing is located an electrical motor 9,0f suitable type and a fan blower 10 preferably directly connected to the motor and upon the same shaft thereof, the blower having a suitable propelling means 11 adapted to project air or the like through the discharge opening 12 communicating with the interior of the ca-sin 1, as clearly shown in Fig. 1 of the drawings. Upon the motor may be supported a suitable air pump 13 and a magneto 14, both being appropriately geared to the driving member of the motor as desired and for the speeds required.

Within the casing 1 is a removable mechanism or device which is capable of being slid longitudinally into the casing from the rear end thereof, which is normally open except for being closed by a closure carried by the movable mechanism. This mechanism is in the form of a unit comprising a carrier '15 having secured at `one end thereof a plate 16 adapted to abut against the end wall 2 of the casing when the unit is inserted and in operative position, and at the other end thereof with av closure plate 17 adapted to close the open end of' the casing 1'. Upon the carrier 15 is supported an electro-magnetic control device or valve mechanism 18, an air reservoir 19 and a rburner head 20. 'I'he air reservoir 19 is secured at the rear end of the unit or carrier and has a discharge air passage 21 leading to the burner head. The valve mechanism 18 'also has a discharge passage or conduit 22 for the oil, leading to the burner head 20. The upper part of the valve 18 is also connected to an inlet conduit 23 and a discharge conduit 24 leading to a discharge nozzle 25, the latter being supported by the plate 16 and adapted to extend through an opening 26 in the end wall 2 and an `opening 27 in the combustion chamber or fire pot 4 as clearly shown in Fig. l ofthe drawings.

The casing 1 has a depending central reduced width portion 28 in which the carrier and the mechanism carried thereby is capable of being` guided and slid into and out of the casing 1, as clearly shown in Fig. 4 of the drawings. At one side of the path of movement of the units and near the forward end of the casing 1 are provided air ports or passages 29 passing through the end wall 2 and communicating with the inlet port or passage` 30 of the fire pot 4. Near the openlng 29, and within the casing -1, are provided suitable shields 31 for shielding the-passage of. air from the adjacently and centrally located burner head 20. The

latter has a 'forwardly extendin portion 32 servin as a discharge conduit or the head 20 an the portion 32 is adapted to extend through suitable central openings in the plates 16 and 2 and into the inlet port of the entry chamber 30 of the combustion chamber. The burner head 20 is also provided with a spark plug 33 operatively located to ignite the fuel. The spark plug is connected by an electrical conductor leading back to a switch element or contact 35 suitably carried on an insulating support 36 secured .to and carried by the carriage 15. The support 36 also carries a pair of electrical contacts 37 and 38 connected by conductors 39 and 40 leading to the electro-magnetic valvelcontrol device 18.

Within the casing 1 and at one side thereof, as clearly shown in Figs. 1, 3 and ,5 of the drawings, is secured an insulating supporting block or blocks 41 and 42 carrying complementary switch contacts 43, 44 and 45 respectively located in the path of movement of the contacts 35` 37 and 38 and to be engaged thereby or disengaged therefrom when the unit is moved into or out of the casing 1, thus making and breaking the respective circuits connected to these contacts. These switches are of any suitable type but preferably of the wiping contact type. An elecf trical conductor 46 is suitably connected to contact 43 and leads to the' magneto 14.

contacts 44 and 45 and lead to suitable control mechanism, such as a thermostat located in the building. A conduit 47 leads from the pump 13 and is connected by 'a suitable coupling or joint to the inlet 48 of the' air chamber or reservoir 19, this coupling being of a type which may be readily disconnected when it is desired to remove or change units. A similar coupling may be provided for the inlet 49 to the conduit 23 and from any suitable fuel supply conduit (not shown) e In use and operation the device is assembled with the casing 1 secured to the lire pot 4 and these parts together with the power mechanism, including the motor 9, blower 10, air pump 13 and magneto 14, form the stationary or permanent part of the plant. The fuel igniting, supplying and control mechanism is carried as a single unitary device or unit upon the carrier 15 and is removable `from the casing 1 as a whole when it is desiredto inspect, adjust or repair the same and in the event that it may be necessary to take the unit to a shop or other place for making whatever changes which may be desired, and which might require considerable time in making the same,'it is merely necessary to remove the unit and to replace the same by another unit without in any way Veffecting the operation of the plantr No disconnection is necessary excep-t the coupdisconnections at the switches and the reconnections thereof, are effected automatically when the unit is withdrawn or inserted in the casing 1. When the unit is inserted the same is guided in the guide portion 28 of the casing and slid toward the forward end until the member 32 projects'lthrough the openings in the plates 16 and 2 and into the inlet port of the combustion chamber 4 and until the plate 16 comes in contact with the plate 2. At the same time the nozzle 25 will pass through the openings 26 and 27 into the position shown in Fig. 1 ofthe drawings. At the same time the switch contacts 35, 37 and 38 will respectively engage or close with the fixed contacts 43, 44 and 45 thus establishing electrical closing of the respective1 circuits controlled thereby. The only manual operation necessary aside from that of inserting the mechanism is of connecting the couplings to the conduits 48 and 49. As the unit is moved into place the plate 17 will close the open end ofthe casing 1. In this way it will be seen that the unit mechanism on the carrier 15 is readily located into place for operation or removed when desired:

While I have herein described and upon the drawings shown an illustrative embodiment of the invention, it is to* be understood that it is not limited thereto but that it may comprehend other details, arrangements of VOther conductors may be connected to the, parts and constructions without departing from the spirit of the invention.

Having thus described my invention, I-

claim 'z- 1. AnA apparatus for burning fuel, comprising In electrically driven air blower, a casing adapted as a support for said blower, an apparatus carrier slidable within said casing, electrically actuated fuel ignition means, and an electrically operated fuel regulating valve mounted on said carrier, fuel mixing means mounted on said carrier and connected with said valve, and complementary engageable electrical contacts carried by said casing vand by said carrier whereby said ignition means, valve, fand fuel mixing means may be slidably moved into electrically operative relation with said blower.

2. A mechanism for fuel combustion, comprising a casing having an open end, a

V motor and blower disposed on said casing, electrical contacts carried by the said casing and beingr in circuit with said motor, a carrier readily movable into and out of said casing and provided with electrical contacts movable with said carrier into and out of contact with said first mentioned contact, an electrically actuated member carried bv said carrier and in circuit with said second mentioned contact, means on said Acarrier for closing said open end,` and fuel mixing and ignition means and an electrically controlled valve carried by the carrier and electrically connected to the contacts on the carrier, said carrier together with said contacts thereon, said member, said fuel supply and ignition means and said valve being movable as a unit, said casing being adapted as an air duct for carrying air from the blower to the fuel mixture.

3. A fuel burning mechanism comprising a casing having a blower mounted thereon and having a port in communication with said blower, a carrier slidable within said casing, said carrier providing support for a fuel ignition means, for a fuel mixing means, and for a fuel regulating means, a combustion chamber having a port in communication with said fuel mixing means, and complementary interengageable electrical contacts carried by said casing and said carrier for allowing said fuel mixing means, said ignition means, and said fuel regulating means to be slidably moved into electrically Ioperative relation with said blower.

4. A fuel burning mechanism, comprising a casing having an open end, a combustion chamber having a fuel supply portvin communication with said casing, a carrier readily and removably located in said casmg, means on said carrier for closing said open end when said fuel means are 1n operative position, said casing being provided with an air supply port at one side of the fuel supply port, a shield in the casingextending rearwardly of said air supply port, and means for blowing air into said casing, said casing being adapted when the carrier is in operative position to be a closed duct for carrying air through the air supply port into the combustion chamber.

5. An apparatus for burning fuel com- 0 prisingv a casing having an air blower and an -air pump mounted thereon and having aport in communication with said blower, and a carrier slida-bly removable and supported by said casing within a guideway in said casing and having fuel mixing, fuel ignition, and fuel regulating means mounted thereon, said carrier being adapted for easy removal from said casing to permit of the adjustment 'of said means.

6. A mechanism for burning fuel. comprising a casing having an air blower mounted thereon and having a portl in communication with said blower, an apparatus carrier slidable within said casing, an electrically operated fuel regulator on said carrier, and complementary engageable electrical contactscarried by said casing and by said carrier whereby said regulator may be slidably moved into an electrical operating circuit common to said regulator and said blower.

7. An apparatus for burning fuel comprising a combustion chamber, a casing, an electrically driven air pump and blower mounted on said casing, a carrier slidable within said casing and having a member at one end thereof provided with a plurality of ports in Comunication with said combustion chamber, fuel mixing means mounted on said carrier in communication with one of said ports, and fuel ignition means and fuel regulating means electrically connected .with said blower.

In witness whereof, I hereunto subscribe my name to thls specification.

I HUDSON A. TEDMAN. 

